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Modeling and Simulation

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Researchers frequently require a quantitative understanding of the likely consequences of different actions before they can advise decisionmakers and design effective policies. RAND develops and uses statistical, econometric, and other exploratory models and simulations to analyze the potential outcomes of different policies in a range of areas such as transportation usage, health care, patient safety, and military campaigns.

Tool

New Tool Can Help Health Officials Plan for COVID-19 Patient Surge

Apr 3, 2020

Hospitals are searching for ways to ramp up their surge capacity to provide critical care for the sickest COVID-19 patients. A new, user-friendly calculator enables decisionmakers at all levels to estimate current critical care capacity and rapidly explore strategies for increasing it.
Report

New Model Helps Predict Cyber Threats and Improve Resilience

May 11, 2021

Today's evolving cyber threats require a tailored and targeted approach to cybersecurity. Current defenses focus on managing threats after a network has been breached. RAND's Scalable Warning and Resilience Model (SWARM) can help defenders proactively protect their systems through early warning of cyber incidents before they occur.

Explore Modeling and Simulation

Journal Article

Gaps in Toxic Industrial Chemical Model Systems: Improvements and Changes Over Past 10 Years

To assess the hazards of the releases of toxic chemicals to the atmosphere, comprehensive model systems are often used. This paper reviews knowledge gaps that were resolved in the past ten years by new theoretical and experimental research.

Jul 21, 2021
Journal Article

Statistical Analysis of Presidential Pardons

This report is a study of pardon-petition evaluations performed by the Office of the Pardon Attorney, a unit in the Department of Justice.

Jul 6, 2021
Journal Article

Variation in Generic Dispensing Rates in Medicare Part D

Although generic use has increased markedly over time in Part D, substantial variation across plans persists in a number of common therapeutic classes.

Jun 30, 2021
Commentary

We Studied COVID-19 Cases After Birthdays. Family Gatherings Can Still Be Dangerous

The high toll of COVID-19 in the United States is likely partly due to informal social gatherings that have not been subject to state and local restrictions. They are often small, intimate, and involve people we trust. And that makes them dangerous.

Jun 28, 2021
Multimedia

State-Level Opioid Policy Analyses: Moving Beyond the Classic Difference-in-Differences Model

This workshop provides an overview of key methodological challenges faced when evaluating the effectiveness of state-level policy using annual state-level data, as well as potential solutions and practice guidelines.

Jun 24, 2021
Multimedia

Game Theory: A Tool for the Vaccine Campaign

RAND operations researcher Luke Muggy discusses ways in which game theory could support the COVID-19 vaccination campaign.

Jun 14, 2021
Commentary

Will the United States Declare Freedom from COVID-19 Too Soon?

RAND analyzed what could happen with COVID-19 deaths in the United States if restrictions all go away on July 4. Fully reopening the economy before Biden's vaccination target was met doubled the average number of COVID-19 deaths between Independence Day and the end of the year.

May 21, 2021
Blog

Pandemic Education, Working Mothers, Predicting Cyber Threats: RAND Weekly Recap

This weekly recap focuses on the urban-rural divide in pandemic education, supporting working moms, what makes a good COVID-19 reopening plan, and more.

May 14, 2021
Tool

Toolkit for Weighting and Analysis of Nonequivalent Groups: A Tutorial on the TWANG Shiny Application for Time-Varying Treatments

This tutorial demonstrates the use of the Toolkit for Weighting and Analysis of Nonequivalent Groups Shiny application for time-varying treatments -- for cases when the time-varying treatment or exposure is binary -- using an illustrative example.

May 14, 2021
Report

Stress-Testing California's COVID-19 Reopening Strategy

States' reopening plans vary widely. With a revised RAND decision support tool, researchers tested alternative plans, using California as an example. The best strategies did not prematurely relax measures like indoor mask-wearing; began with a high level of caution; were tied to vaccination rates; and made changes gradually.

May 10, 2021
Report

On Balanced Games Without Side Payments: A Correction

The purpose of this paper is to repair Lemma 6.3 appearing in the author's previous paper of the same title (P-4910, September 1972).

May 1, 2021
Commentary

If You Build Automated Vehicles, Will Older Adults Come?

Whether older adults benefit from autonomous vehicles may hinge on taking explicit steps. Lessons can be learned from experiences with other technologies.

Apr 28, 2021
Journal Article

Improving Care Experiences for Patients and Caregivers at End of Life: A Systematic Review

Previous reviews examined palliative care improvements or available measures but none explicitly on improving care experiences. We reviewed literature on improving patient and/or caregiver end-of-life care experiences.

Apr 7, 2021
Commentary

What Factors Affecting Retention Matter Most to Teachers?

Maintaining an adequate supply of teachers is a challenge and an area of significant concern. Rather than a one-size-fits-all approach, a set of interventions developed to target the preferences and expectations of specific groups of teachers is likely to be most effective.

Apr 5, 2021
Blog

Game Theory to Help the Vaccine Rollout, Abraham Accords, Telehealth: RAND Weekly Recap

This weekly recap focuses on how game theory can help the COVID-19 vaccine rollout, potential economic benefits of the Abraham Accords, telemedicine use during the pandemic, and more.

Mar 19, 2021
Journal Article

Who Is (and Isn't) Receiving Telemedicine Care During the COVID-19 Pandemic

COVID-19 has affected telehealth utilization disproportionately. The increase in telemedicine use was greatest among patients in counties with low poverty levels, among patients in metropolitan areas, and among adults compared with children.

Mar 18, 2021
Journal Article

An Audit Tool for Longitudinal Assessment of the Health-Related Characteristics of Urban Neighborhoods: Implementation Methods and Reliability Results

To identify neighborhood features that are predictors of health, objective assessments of the environment are used. In this paper, we have described implementation methods, reliability results and lessons learned to inform future studies of change.

Mar 16, 2021
Journal Article

Food Insecurity Is Associated with Objectively Measured Sleep Problems

Food Insecurity (FI) can be a profound source of stress, which may increase the risk for sleep disturbance. This is the first study to examine the association between FI and objectively and subjectively measured sleep.

Mar 16, 2021
Journal Article

Neighborhood Socioeconomic Status, Sleep Duration, and Napping in Middle-To-Old Aged US Men and Women

In over 300,000 middle-to-old aged Americans, we examined neighborhood socioeconomic status (SES) and change in neighborhood SES in relation to nocturnal sleep duration and napping.

Mar 15, 2021

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RAND Topic:
Modeling and Simulation

Topic Synonyms:
Mathematical Modeling;
Modelling

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